Visualization and computer graphics on isotropically emissive volumetric displays

Benjamin Mora, Ross MacIejewski, Min Chen, David S. Ebert

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The availability of commodity volumetric displays provides ordinary users with a new means of visualizing 3D data. Many of these displays are in the class of isotropically emissive light devices, which are designed to directly illumi-nate voxels in a 3D frame buffer, producing X-ray-like visu-alizations. While this technology can offer intuitive insight into a 3D object, the visualizations are perceptually different from what a computer graphics or visualization system would render on a 2D screen. This paper formalizes rendering on isotropically emissive displays and introduces a novel technique that emulates traditional rendering effects on isotropically emissive volumetric displays, delivering results that are much closer to what is traditionally rendered on regular 2D screens. Such a technique can significantly broaden the capa-bility and usage of isotropically emissive volumetric displays. Our method takes a 3D dataset or object as the input, creates an intermediate light field, and outputs a special 3D volume dataset called a lumi-volume. This lumi-volume encodes approximated rendering effects in a form suitable for display with accumulative integrals along unobtrusive rays. When a lumi-volume is fed directly into an isotropically emissive volumetric display, it creates a 3D visualization with [...]

Original languageEnglish (US)
Article number4585377
Pages (from-to)221-233
Number of pages13
JournalIEEE Transactions on Visualization and Computer Graphics
Volume15
Issue number2
DOIs
StatePublished - Mar 1 2009
Externally publishedYes

Keywords

  • Display algorithm
  • Expectation maximization
  • Three-dimensional displays
  • Volume visualization

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Computer Graphics and Computer-Aided Design

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